o donn-ell



' J. W. ODONNELL. LEATHER wommm mama, APPLICATION FILED APR. 5. I91].

Quins-snarl,

Patented M m, 1919.-

#LEATHER WORKING MACHINE:

I i APPMATIO N FILED APR. 5. 1947-,

- 1,3Q3 840, Patented May-16, 1919.

4 SHEETS SHEET 4.

following J'QHN W. ODON'NELL, OF SALEM, MASSACHUSETTS, ASSIGNOR, .BYMESNE ASSIGNMENTS,

TO THE CARLETON RUHE COMPANY.

LEATHER-WORKING- MACHINE.

T 0. all whom it may concern:

Be it known that I, J OHN \V. ODONNELL,' a subject of King George V ofEngland, residing at Salem, in the county of Essex and State ofMassachusetts, have invented new and useful Improvements inLeather-Working Machines, of which the following is a specification.-

This invention relates to improvements in leather working machines andhas for its object to provide a machine. adapted to so thoroughlyperform the, process of unhairing hides, skins or the like that theoperation known as the fine hairing will be prac-, tieally eliminated,both operations being accomplished substantially in one and withoutinjury to the hide.

Another object of the invention is to provide a machine which iscapable, by very slight adjustment, of accomplishin the fleshing ofhides, skins or the like without in the least cutting or damaging theskins.

Still another object of the invention is to provide a machine adapted,in addition to the above, to accomplish the operation known as theputting out of hides or skins, that is to say, stretching or working outthe wrinkles or irregularities from the same.

The invention consists in the combination and arrangement of parts setforth in the specification and particularly pointed out in the claims.

Referring to the drawings: Figure 1 is a front elevation of a machineembodying my invention, portions of said machine being broken away tosave space in the drawings.

Fig. 2 is a, right hand side elevation of the same.

Fig. 3 is a vertical section taken on the line 3-3 of Fig. 1. In thisfigure one of the feed rolls and the bed roll are shown in their forwardpositions in readiness to receive work. a

Fig. 4 is a detail sectional view, illustrating the work members, feedrolls and bed roll of the machine in their operating positions, a pieceof work being shown between said rolls.

5 is adetail sectional view, similar to Fig. 4, showing a rearrangementof the Specification of Letters Patent.

\ skins or Patented May 13, 1919.

Application filed April 5, 1917. ScrialNo. 160,032.

working parts of the machine, so as to em able it to perform a fleshingoperation on a skin or.hide.

F ig. 6 is a' front elevation of a portion of one of the Work members,showing the difference between the pitch of the helical blades on saidmember and those of the corresponding work member, shown in Fig. 4.

Fig. 7 is a detail sectional view, similar to Figs. 4 and 5,illustrating" the working parts of the machine, adjusted or rean rangedto accomplish the putting out of the skins or hides.

Fig. 8 is a detail sectional view taken on the line 8-8 of Fig. '2.

Fig. 9 is a section taken on the line 9-9 of F ig'. 3. Fig. 10 is'aperspective view of the slicker blade and its supporting member. Likenumerals refer to like parts through out the several views of thedrawings.

In the (.lrawings, 1 represents a base plate of a design suitable tosupport a pair of side frames 2 and 3, adapted to supportthe workingparts of the machine. When the machine is employed in the unhairing ofhides the arrangement of the working parts will be as shown in Figs. 1to 4 inclusive. In this adaptation two work menr bers 4 and 5 are shown.The work member 4 is rotatably mounted upon the side frames 2 and 3 insuitable hearings on said frames and the shaft 6 of said member alsoconstitutes the main driving shaftby which the other working parts aredriven.

A driving pulley 7 is attached. to the shaft 6 and receives itspowerfrom any suitable source. The body of the work member 4 iscylindrical and is provided with a plurality of peripheral helicalblades 8 which extend from a point, midway of the work member toward theends in left and right helices in accordance with the constructiongenerally followed in devices of this character. The pitch of each ofthe helical blades 8-that is, referring to the distance betweensuccessive helices measured along a line parallel with the axis of thehelixis preferably 4:2".

'lhe work member 5' is also cylindrical in construction and providedwith a plurality of peripheral helical blades Q'SimiIar-to the blades 8of the member 4, with the exception that the pitch of the blades 9 ispreferably substantially 74". The work menrbers l and 5 are preferablyrotated in the same direction, that is, in the direction indicated bythe arrows (Y and 7), the member 5) receiving its powe nfrom the member-lpreferably by means of 'a train of gears, including a gear 10 fast tothe shaft (3 which engages a gear 11 attached to one end of anintermediate shaft 12, journaled to rotate in the side frames and at therear of the work members 4 and j A gearl l is secured to the oppositeend of the intermediate shaft 12 and meshes directly with a gear 11-attached to one end of the shaf't of the work member 11 bed roll 15provided with a yielding periphery 16 preferably formed of rubber, isarranged to eoi'iperate with the work members 4 and 5; that is to say,the bed roll is mounted upon. a rock r frame 17, consisting of two arms18 and 19 which are pivotally mounted upon a shaft 20 supported by theside frames 2 and 3, above the work members at. and 5. lfhe arrangementof the bed roll 15 upon the rocker frame 17 is such that when said frameis rocked said roll will be moved into a position between the men'ibers1 and 5 so as to engage said members with equal pressure when movedthereagainst. v

The bed roll 15 coi'istitutes a support for the work while being actedupon by the work members 4 and 5, and means are provided to feed thework over said bed roll in opposition to said work members said feedingmains n'efciably including a pair of feed rolls 21 and 22. The feed roll21 is jour- -naled to rotate in swivel bearings 17), see

Fig. 8, formed in rocker arms 23, mounted adjacent to the inner face ofeach of the side frames 2 and 3, upon a shaft 24-, said shaft beingjournaled to rock in bearings formed in the side frames 2 and 3 Therocker arms 23 are each provided with a lu 25 which normally engages anadjusting screw 26 mounted in each of the side frames 2 and 3.

The lug 2a is furthermore yicldingly maintained against the adjustingscrew 2(3 by means preferably including a spring 27, one end of whichseats against a collar 28 which abuts against a sleeve 25). said sleeve.in turn abutting against a stud 30. attached to the rocker arm 23. 'lhcopposite end of the spring 27 seats against: a collar 2-31 secured tothe end of a rod 32 passing through the center of the spring 27. Saidrod also passes through the sleeve 2%) and stud 30in *ard the front ofthe machine. The forward end of the rod 32 is screw threaded and engagesan adjusting member 33. The adjusting memher 33 engages a dog EHattached to the lower end of an arm 35 depending from the shaft 20. 7

An abutment 36 on the side frame is adapted to sustain the thrust. uponthe dog 34:, due to the pressure of the spring 27 on the rod 32.

A rotary motion is imparted to. the feed roll 21 in the direction of thearrow 0 from the shaft 12 through a train of gears consisting of a gear.37 fast to the shaft 12 which meshes with a gear 38 rotatably mountedupon the shaft 21.

Secured to the gear 38 is another gear 39 which rotates therewith andmeshes with a gear 40 attached to the shaft of the feed roll 21. Thefeed roll 22 is journaled to rotate in bearings -11, 11 carried by thearms 18 and 19 and this roll has motion imparted to it through a pair ofgears and 43 secured respectively to the rolls 22 and 91. The teeth ofsaid gears are pointed to permit the same to mesh readily during themovements of the rocker frame 17 toward the feed roll 21. The rolls 21and are each provided with longitudinal corrugations 4 1 which assist infeeding the work in opposition to the pressi'ire applied thereto by thework members at and which are rotated in an opposite direction to saidfeed rolls.

In addition to the longitudinal corrugations at the feed roll is alsoprovided with a series of circumferential corrugations 15 which assistin preventing a movement of the work longitudinally of the feed roll.

The bed roll 15 is preferably adj ustably and yielding] y mounted uponthe rocker frame 17 so as to permit the same to be adjusted to contactwith equal pressure against the membersl and 5 and to slightly yield toaccommodate any variation in thickness of hides or skins that are to betreated by the machine.

For this purpose the bed roll 15 is journ'aled to rotate in swivelbearings 15 similar to those illustrated in Fig. 8. The bearings 15 aremounted in bearing members to, 46 pivotally attached at 47 to pivotalmembers is pivoted at 49 to the lower ends of the arms le and 1S). l ponopposite sides of the pivot 17 of each of the members 10 are adjustingscrews 50. 50 which engage the bearing members l6 and by suitablemanipulation are adapted to rock the bearing members it? about the axesof their pivots -l7. 'lhe pivotal members "ii are provided with lugs 51hearing adjusting screws 52 adapted to engage portions of the arms toand 1t) and thereby prevent the movement of the roll 15 relatively tothe arms 18 and it) in the direction of the members 4- and 5 when therocker frame 17 is stationary.

Each of the pivotal members 48 has an arm 53 which has attached theretoa rod 54. Encircling the rod 54 is a spring 55 which abuts at one endagainst a collar 56 which in turn, engages arms 57 projecting forwardlyfrom the arms 18 and 19. The opposite end of the spring 55 abuts againstan adjusting member 58 which has screw cranks 59 are connected to thearms 18 and threaded engagement with the end of the rod 54, whereby thetension of the spring 55 may be adjusted. By means of the spring 55 andits cooperating parts a yielding pressure will be app-lied to-inalntainthe ad uSting screw 52 against the cooperating portion of the arm of therocker frame adacent thereto and incidentally permit the bed r011 15 todescribed.

The rocker frame 17 is adapted to be oscillated after'the work has beenplaced overthe bed roll 15 and the feed roll 22, preferably by means ofcranks 59 attached to opposite ends of a shaft 60 journaled to rotate inthe side frames 2 and 3. The

19 by connecting rods 61. Motion is imparted to the shaft 60 preferablyfrom the driving shaft 6. This motion is slow and adapted to becontrolled by the operator.

The preferred method of operating said shaft consists of a worm gear 62fast to the shaft 60 and engaging a worm 63 secured to a shaft 64journaled to rotate in bearings 65. The shaft 64 is operated throughmiter gears 66 and 67 from a shaft 68 which,"

in turn, receives its motion through a train of gears,,including a spurgear 69 rotatably mounted upon the shaft 68 and adapted to be connectedtherewith. by means of a clutch of any of the well known types, one formof which is shown at 70. The gear 69 meshes with an intermediate gear 69and a gear 71, rotatable with the gear 69, in turn engages a gear 72fast to the driving shaft 6.

The operation of the m anhine'herinbefore specifically described is asfollows:

A hide or skin is laid over the feed roll 22 preferably with one-half ora little more than onehalf of said hide projecting downwardly from theside of said roll toward the feed roll 21, the flesh side of saidhidebeing against the feed roll 22. .The work members 4 and 5 and thefeed roll 21 are at this time being rotated from the shaft 6. Theoperator next operates the clutch to connect the shaft 68 with the gear69, thereby imparting a rotarymovement to the worm gear 62 to advancethefeed roll 22 to the feed roll 21, while the bed roll 15 moves 7 withthe hide to press said hide against the work members 4 and 5.

Immediately upon the .engagen'ient of the teeth of the gear 42 withthose of the gear 43 the work, which. previously simply laid a over theroll 22, will be moved in the direction of the arrow 0 by the feed rollsin opposition to the action of the work members 4 and 5. The pressure ofthe bed'roll 15 against the blades of the members 4' and 5 causes saidblades to scrape the hair from the side bf the hide. This operation isgreatly facilitated by the lower work memyield slightly, as hereinbeforeThe arrangement of the helical blades upon the members also tends tostretch the I hide longitudinally of the rolls as well as in the otherdirection. After the portion of the hide, which was below the feed roll22 when the operation started, has been treated by H rocker frame 17 isposition by again which was thrown the work members, the returned to itsformer throwing in the clutch out when said frame arrived at itsinnermost position. This moves the rolls 22 and 15 back to their formerpositions and the hide or work thereon is turned end for end go as toleave the untreated portion thereof suspended from the roll 22 anddirected toward the work members. The operation is then repeated.

The bed roll 15 is not disposed directly beneath the feed roll 22 whenthe rocker frame is forward, as shown in F ig. 3, but is farther towardthan said-roll 22 in order to permit the skin, which has been placedupon said feed roll 22 in readiness to be advanced to the work members,to hang freely bed roll. Should said skin be permitted to touch said bedroll when being laid over the feed roll prior to its being fed to thework members a Wrinkle or slackness is likely to be formed and if thisis not removed before the work members contact therewith the skin willbe cut or torn by the sudden tightening thereof. This, arrangement ismade possible by mounting the bed roll and feed roll 22 .upon the rockerframe which is pivoted to rock about an axis disposed above the workmembers, thus causing the bed roll to move through a longer path thanthat traversed by the feed roll 22 Another advantage resulting from thisarrangement is that less power will be required to move the feed rollsinto operative relation with their cooperating members, the weight ofsaid frame and roll mounted thereon being nearly sufficient to produceall of the pressure required.

In Fig. 5 is shown in detail the arrange ment of the working parts asused in the fleshing operation. During this operation the face of thehide, rather than the back' 22; thus the roll with the longitudinal e01-member 1;)

73 is provided which differs from the work member 5 only in the pitch ofthe blades 'T-lthereof which are preferably of substan-' tially 10pitch, whereas those of the member 5 were of 7-1: pitch. The lower workmember 75 of this form is identical with that illustrated in Fig. 6 andoperates at a suitable speed. whereas the men'iber T3 is arranged tooperate much faster than the member 75.

The blades 'T-t of the member 73. rotating in the direction of the arrowshown in said figure remove all of the flesh from the hides, this being'assisted by the member 75 which rotates in the same direction and helpsto maintain the hide taut during the feeding thereof and during theremoving of the flesh by said member 7 In Fig. 7 I have shown anotherarrang'ement of the working parts of the machine,

especially adapted to the putting out ofskins and hides, that is to say,to the spreading and stretchingof the hides in both directions in orderto remove wrinkles, natural, grain and water from the hide. In carryingout' this feature of the invention, instead of using the corrugated feedrolls shown in the figures previously descrihech felt rolls 76 and 77are inserted instead of the rolls 21- and 22.

The work members 78 and 7.) are the same as the work members of theunhairing: machine, that is, the member TS has helical blades 80 ofsubstantially Tat pitch and the member 7!) has helical blades 81 ofsubstantially 12 pitch. The members To and 79 are rotated in thedirection of the arrows and in opposition to the feeding movement of theskin by the rolls'Tt' and 77. which movement is in the direction of tharrow g.

In place of the bed roll 15 which has a rubber surface a member 3-3 isei'i'iployed said member being mounted in place of the and preferablyconsisting of a bed 83 of substantially t\\'othirds of a circle directedtoward the members T8 and it). (in this bed is placed a strip ofresilient materiah preferably felt Hi, and over this is laid a strip ofleather 83 said felt and l.2ltl1(l constitutin; a bolster which isadapted to support the hide shown at so in a position to be operated onby the mcmbers TS and 7!).

Attached to th bed s1) is a slicker blade 8? provided with a slightlyrounded nose. 88 which is directed between the members TS and TH andworks upon one side of he. kin or hide while the work members 7s and 79are workingupon the other face thereof. The work member 79, mutatingfaster than the work member 78 and in the direction of the arrow f.causes the work to be drawn taut over the slicker blade 87 while thepull.

of the feed rolls 7G and 77 feeds the work bet ween the work members andslicker blade.

\Vith this arrangement. the skin or hide, after being treated on oneside by the work member 7), is then worked upon its opposite side by theslicker blade 87, and this work is intensified because of the positionof the slicker blade 87 being not only between the work members 78 andTit but because of the fact that it is placed far enough between saidwork members 78 and 79, bringing the working point of said slicker bladeconsiderably beyond a plane tangent to the working surfaces of said workmembers,

This results in breakingthe hide over the point of the slicker blade atan acute angle, thereby greatly increasing the strain and stretch uponthe hide and resulting in the drawing; out of wrinkles and the workings,ot' fibers in a superior manner. The hide, after passing from theslicker blade 87, is then subjected to the action of the work member 78whichengages the opposite side of the work from that engaged by saidslicker blade.

By combining the slicker blade with the two work members, the operation, ('UllllllOlll, known as staking, which is the softeniimandstretching of tanned leather and which is now accomplished on machinescoi'istructed solely for that purpose, may be acconr plishedsimultaneously with the regular functions of this machine therebyresultin in a great. savingof time and of labor.

lln performiiu the respective operations of unhairin e. flushing andsetting out of hides and skins the two work members are preferablyadjusted so that the lower work member will revolve, at suitable ratesof speed in each of the several operations and the upper work memberwill also revolve. at. suitable ratio of speed to the lower work memberin each of the scveral operations.

Having thus specifically dcscribial my in vention what. l claim anddesire by Letters Patent to secure is:

1. A machine of the character described having. in combination. a workmember. a work supporting member. a pair of work feeding rolls actingindependently of said work supporting member a pivoted frame adapted tosupport said work supporting; member and one of said feed rolls. theaxis of said frame being disposed aborc said work member, said worksupporting mem her being); adapted by reason of the position of saidaxis abore said work supporting; member to more downwardly toward saidwork member whereby the weight of said frame and said work member will vsit the movement of said work supporting member into engagement withsaid work member and means for operating said pivotal frame i to movethe member carried thereby toward and from said work member.

2. A' machine of the character described havang, :incombinatiomf astationary frame, a' pair of Work member's rotatably mounted in said,frame, each of said work members having peripheral helical blades, afeed roll yieldingly mounted upon'said frame, means for rotating saidfeed roll, a rocker frame pivotally mounted upon said frame to rockabout an axis disposed above said work members, a second feed roll uponsaid rocker frame in cooperating relation with the feed I roll of saidframe, a work supporting memher also mounted upon said rocker frame vincooperating relation with said pair of work members, and means adapted"to operate said rocker frame to move the memberg thereon toward or awayfrom the rolls in said frame;

3. A machine of the character described having, in combination, astationary frame,

- a feed roll rotatably mounted onsaid frame,

a pair of work members rotatably mounted on said frame, means forrotating said mem-v bers, a. rocker frame arranged to rock about .anaxis disposed above said feed roll, a sechaving, in combination, a pairof cooperating feed rolls, a worksupporting member, a" work memberconstructed and arranged to engage the work upon the opposite sidethereof from said work supporting member, means for operating said workmember in opposition to said feed rolls, and means for engaging the workbehind, adjacent to and uponthe same side thereof with said work member,adapted to maintain the work under tension while passing between saidwork member and said work supporting member.

5. A machine of the character described having, in combination, a worksupporting member, means for feeding the work over said work supportingmember, a work member'provided with. peripheral helical blades adaptedto engage the work upon the opposite face thereof from saidwork'supporting member, said blades being of substantially 74K pitch, asecond work member also provided with peripheral helical blades adaptedto-engage the work upon the opposite face thereof from said worksupporting member,

the helices of said second work member being of substantially 4% pitch,and means for rotating said work members in opposition to saidfeedingmeans.

6. A machine of the character described having, in combination, a worksupporting member provided with a yielding periphery, means for feedingthe work over said work supporting member, a work member provided withperipheral helical blades adapted to engage the work upon the oppositeface thereof from said work supporting member,

,saidblades being of substantially 74 pitch,

a second work member also provided with peripheral helical bladesadapted to engage the work upon the opposite face thereof from said worksupporting member, the helices of said second workmember being ofsubstantially 42 pitch, and means for rotating said work members atdifferent speeds and in opposition to said feeding means.

7. A machine of the character described having, in combination, a pairof work members, each provided with peripheral helical blades, theblades of one of said members being of substantially steeper pitch thanthe other, a work-supporting member having a resilient periphery adaptedto support the work between and against the blades of both of saidworkmembers, means for rotating both of said work members, the surface speedof the member of steeper pitch being less than that of the other, andmeans independent of said work'supporting mom her for feeding theworkbetween said work members and said work supporting member in oppositionto the movements of 'said work members.

8. A machine of the character described having, in combination, astationary frame, rotatable work members mounted upon said stationaryframe,'said work members having peripheral helical blades, means forrotating said work members, a feed roll mounted to rotate on said frame,means for rotating .said feed roll, a rocker frame pivoted to rock aboutan axis disposed above said feed roll, a second feed roll rotatablymounted upon said rocker frame adapted to cooperate with and be rotatedfrom said first named feed roll, one of said feed rolls being yieldablydisposed relatively to the other, a work supporting member yieldinglymounted upon said rocker frame adapted to be moved into operatingrelation with said work members, and means for operating said rockerframe, to move, said second named feed rolland said work supportingmember respectively toward and away from said first mentioned feed rolland said work members.

' 9. A machine of the character described having, incombination, a palrof work members, a rocker frame mounted'to rock about' an axis disposedabove said work said work members being members, a pair of bearingmembers pivotally mounted at opposite sides of said rocker frame, a.work supporting member mounted on said bearing members, means forexerting a yielding pressure upon said work supporting member, means forrocking said rocker frame to move said work supporting member betweensaid work members, whereby the work will be pressed thereby against bothof said. work members, means for feeding the work between said worksupporting member and said work members, and means for operating saidwork members in a direction opposite to that of said work.

10. A machine of the character described having, in combination, a pairof work members, each provided with a plurality of peripheral helicalblades, the blades of one of of substantially L2 pitch and the blades ofthe other of said members being of substantially 74 pitch, means foriotating said work members in the same direction, means for supportingand forcing the work between and against the helices of said workmembers, and-means for feeding the work in a direction opposite to themovements of said work members.

11. A machine of the character described having, in combination, a pairof work mein bers, a feed roll arranged above said worr members, asecond teed roll constructed and arranged to cooperate with the firstnamed feed roll to feed the work, a work supporting n'iel'l'lbcrconstructed and arranged to :0- operate with said work members tooperate upon the work. and means for moving said second ttccd roll andsaid work supporting member toward and from the first named feed rolland said work members, said movablc teed rollbeing arranged to the rearof said work supporting); member when in its forward position,whereby-the work supported by said teed roll may be freely suspendedtherefrom.

12. A machine of the character described having. in combinatirm, workingcylinders, a supporting member consisting of one or more tacos adaptedto hold the work in coir tact with said working cylinders, a slickerblade projecting from the face of said supporting member, adaptcd tosupport the work in contact with said working cylinders, incans formoving said supporting member toward and from said working cylinders,and a pair of cooperating 'tccd rolls working iiulcpcndcntly oi saidworking cylinder tor drawing the work between said support.- ing mcmbcrand said working cylinders.

i). A machine of the character described having in combination. a\\'orl\'-supporting member, means for t'ceding the work over saidworlosupporling member. a work-nicm-- ber provided with peripheralhelical blades adapted to engage the work upon the opposite lace thereoffrom said work supporting member, a second work member also providedwith peri )heral helical blades adapted to engage the work upon theopposite face thereof from said work-supporting member, the helices ofsaid second work member being of a different pitch, from the helices ofthe first work member, and means for rota ting said work members inopposition to said feeding means.

14. A machine of the (Jllt *acter described having, in combination, awork-supporting member, provided with. a yielding periphery, means forfeeding the work over said worksnpporting member, a work member providedwith peripheral helical blades adapted to engage the work upon theopposite taco thereot from said work-snpporting member, said bladesbeing of a certain pitch, a second work member also provided withperipheral helical blades adapted to engage the work upon the oppositeface' thereof from said work-supporting men'iber, the helices of saidsecond work member being of a. certain. ditterent pitch, and means forrotating said work members at different speeds and inv 0pposition tosaid feeding means.

15. In a machine of the character described and in combination, a.work-supporting member, means for feeding the work over saidwork-supporting member, a pair of simultaneously cooperating workmembers, each. adapted to engage the work upon the opposite face fromthe work-enpporting member, each of said work members being providedwith a plurality of peripheral helical blades, the pitch of said helicalblades being different in each work member, and means for operating saidwork members in opposition to said, means tor feeding; the work andatditierei'it rates or speed for each work member. I

16. In a machine of the character described and in combination awork-surmorting member of yielding periphery, means tor "feeding thework over said work-supporting member, a work member provided with a plnality of peripheral helical blades of certain pitch adapted to engagethework upon the opposite face from said work-sup portingmember,cooperating sinuiltaneously with a second work member provided with aplurality of peripheral helical blades of dit- 't'ercnt pitch adapted toengage the work upon the opposite tare from the work-supporting memberand means tor operating said work members in opposition to said meansfor t'ecding the work and at ditterentrates of speed "for each workmember.

17. In a machine of the character de-' with spiral blades of differentpitch, said knit'e cylinders rotating in the same direc tion and inopposition to said feeding means.

18. In a nrachine of the character de scribed, the eon'lbination with awork-supporting member of means for feeding the work over the same andtwo knife cylinders rotating at different speeds and cooperatingsimultaneously with said work-supporting member, said knife cylindersbeing provided with spiral blades of different pitch, the surface speedof the cylinder of steeper pitch being less than that of the other.

19. In a machine of "the character described the combination with aWork-supporting member having a yielding periphery of means for feedingthe work over the same,

and two knife cylinders rotating at different speeds and cooperatingsnnultaneously wlth said work-supporting member, said knife cylindersbeing provided with spiral blades of different pitch, the surface speedof one of the knife cylinders being less than that of the other so as toallow for the Variation in the pitch of the blades of the two cylinders.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN W. ODONN ELL. Witnesses Fnnn A. Non'roN, EDNA L. TUTTLE.

